WILLIAM OPTICS
Testar Australia is an authorized William Optics dealer. William Optics has earned a reputation over the last two decades for producing high quality yet affordable telescopes and accessories. Their refractors are made from precision CNC-machined and anodized aluminium and feature Ohara FPL-53 synthetic fluorite glass for excellent aberration correction.
Up to 5% offWILLIAM OPTICS MINICAT 51 WIFD f/3.5 REFRACTOR
In stockSale price $1,51900AUD Regular price $1,59900Unit price /Unavailable
10% offWILLIAM OPTICS REDCAT 51-III WIFD f/4.9 REFRACTOR
In stockSale price $1,34900AUD Regular price $1,49900Unit price /Unavailable
12% offWILLIAM OPTICS REDCAT 61 WIFD F/4.9 APO REFRACTOR
Very low stock (1 unit)Sale price $1,84900AUD Regular price $2,09900Unit price /Unavailable
6% offWILLIAM OPTICS REDCAT 71 WIFD f/4.9 REFRACTOR
Very low stock (1 unit)Sale price $2,35900AUD Regular price $2,49900Unit price /Unavailable
Up to 4% offWILLIAM OPTICS REDCAT 91 WIFD f/4.9 REFRACTOR
In stockSale price $4,49900AUD Regular price $4,69900Unit price /Unavailable
WILLIAM OPTICS ULTRA-CAT 76 f/4.8 REFRACTOR - 30th ANNIVERSARY
Very low stock (1 unit)Regular price $3,99900AUDUnit price /Unavailable
4% offWILLIAM OPTICS ULTRA-CAT 108 f/4.8 REFRACTOR
In stockSale price $6,49900AUD Regular price $6,79900Unit price /Unavailable
5% offZENITHSTAR 61 II F/5.9 APO DOUBLET
Sale price $1,23400AUD Regular price $1,29900Unit price /Unavailable
Up to 5% offZENITHSTAR 81 WIFD F/6.9 APO DOUBLET
Sale price $1,70900AUD Regular price $1,79900Unit price /Unavailable
Up to 5% offGRAN TURISMO 81 WIFD F/5.9 APO TRIPLET
Sale price $3,03900AUD Regular price $3,19900Unit price /Unavailable
5% offWILLIAM OPTICS PLEIADES 68 F/3.8 ASTROGRAPH
Sale price $3,27700AUD Regular price $3,44900Unit price /Unavailable
5% offWILLIAM OPTICS PLEIADES 111 F/4.8 ASTROGRAPH
Sale price $6,64900AUD Regular price $6,99900Unit price /Unavailable
5% offWILLIAM OPTICS PLEIADES 181 F/5.5 ASTROGRAPH
Sale price $31,34900AUD Regular price $32,99900Unit price /Unavailable
Up to 9% offFLUOROSTAR 132 F/6.9 APO TRIPLET
Sale price From $7,38900AUD Regular price $7,99900Unit price /Unavailable
Up to 5% offFLUOROSTAR 156 F/7.8 APO TRIPLET
Sale price $13,29900AUD Regular price $13,99900Unit price /Unavailable
Up to 14% offIn stockSale price $18900AUD Regular price $21900Unit price /Unavailable
Up to 7% offIn stockSale price $24900AUD Regular price $26900Unit price /Unavailable
8% offFLAT6AIII 0.8x REDUCER FOR GT71, GT81, Z81, Z103
Sale price $36900AUD Regular price $39900Unit price /Unavailable
9% offFLAT68III 1x FLATTENER FOR FLT91, FLT120, FLT132, FLT156
Sale price $1,04900AUD Regular price $1,14900Unit price /Unavailable
13% offFLAT7A 0.8x REDUCER FOR FLT120, FLT132, FLT156
Sale price $1,04900AUD Regular price $1,19900Unit price /Unavailable
11% offFLAT8 0.72x REDUCER FOR GT102, FLT132, FLT156
Sale price $1,28900AUD Regular price $1,44900Unit price /Unavailable
8% offFLAT73A 1x FLATTENER FOR ZENITHSTAR 73
Sale price $36900AUD Regular price $39900Unit price /Unavailable
13% offWILLIAM OPTICS DR FLAT MASTER 0.8x REDUCER FOR GSO RC
Sale price $1,34900AUD Regular price $1,55000Unit price /Unavailable
WILLIAM OPTICS FLATTENER ADAPTER FOR FLT91, FLT120
Regular price $7900AUDUnit price /Unavailable
Up to 13% offWILLIAM OPTICS DSD VIXEN DOVETAIL 210mm
In stockSale price $6900AUD Regular price $7900Unit price /Unavailable
Up to 11% offWILLIAM OPTICS DSD VIXEN DOVETAIL 245mm
In stockSale price $7900AUD Regular price $8900Unit price /Unavailable
Up to 5% offWILLIAM OPTICS LOSMANDY DOVETAIL 400mm
Sale price $18900AUD Regular price $19900Unit price /Unavailable
5% offCAMERA ANGLE ROTATOR FOR 2.5" M63 FOCUSER
Very low stock (1 unit)Sale price $17900AUD Regular price $18900Unit price /Unavailable
10% off3" CAMERA ANGLE ROTATOR FOR M92 FOCUSER
In stockSale price $26900AUD Regular price $29900Unit price /Unavailable
13% offDURA-BRIGHT 2" DIELECTRIC 90° DIAGONAL
In stockSale price $25900AUD Regular price $29900Unit price /Unavailable
9% offDURA-BRIGHT 1.25" DIELECTRIC 90° DIAGONAL
Very low stock (1 unit)Sale price $19900AUD Regular price $21900Unit price /Unavailable
12% offWILLIAM OPTICS 1.25" 90° ERECTING PRISM
In stockSale price $14900AUD Regular price $16900Unit price /Unavailable
13% offWILLIAM OPTICS COPPER M48 T-RING FOR CANON
In stockSale price $13900AUD Regular price $15900Unit price /Unavailable
13% offWILLIAM OPTICS COPPER M48 T-RING FOR NIKON
Very low stock (1 unit)Sale price $13900AUD Regular price $15900Unit price /Unavailable
17% offWILLIAM OPTICS M48 T-RING FOR CANON EOS
In stockSale price $4900AUD Regular price $5900Unit price /Unavailable
17% offWILLIAM OPTICS M48 T-RING FOR NIKON
In stockSale price $4900AUD Regular price $5900Unit price /Unavailable
13% offWILLIAM OPTICS M48 T-RING FOR FUJI X-MOUNT
Sale price $6900AUD Regular price $7900Unit price /Unavailable
13% offWILLIAM OPTICS M48 T-RING FOR SONY E-MOUNT
Very low stock (1 unit)Sale price $6900AUD Regular price $7900Unit price /Unavailable
10% offWILLIAM OPTICS M48 T-RING FOR CANON EOS-R
Very low stock (1 unit)Sale price $8900AUD Regular price $9900Unit price /Unavailable
10% offWILLIAM OPTICS M48 T-RING FOR NIKON Z
Very low stock (1 unit)Sale price $8900AUD Regular price $9900Unit price /Unavailable
13% offWILLIAM OPTICS M48 T-RING FOR OLYMPUS MICRO 4/3
In stockSale price $6900AUD Regular price $7900Unit price /Unavailable
17% offWILLIAM OPTICS M48 T-RING FOR PENTAX K
Very low stock (1 unit)Sale price $4900AUD Regular price $5900Unit price /Unavailable
